Press-button.



M. F. ALEXANDER.

PRESS BUTTON.

APPLICATION FILED DEC.26.1916.

1,267,494. Patented Dz[ay 28,1918.v

How

UNITED STATES PATENT OFFICE.

MILTON IF. ALEXANDER, OF MILWAUKEE, WISCONSIN, ASSIGNOIR- OF ONE-HALF 'IO AUGUST SAUER, OF MILWAUKEE, WISCONSIN.

PRESS-BUTTON.

Specification of Letters Patent.

Patented May 28, 1918.

T 0 all whom it may concern Be it known that I, MILTON F. ALEXAN DER, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Press-Buttons; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to new and useful improvements in press buttons, more particularly of that type wherein the dome of the female member is recessed for disposition therein, of spring means engageable with the stud of the male member when inserted in the dome, to hold said stud resiliently against detachment.

It is the object of my invention to in crease the gripping efliciency of the spring means employed in the button, and at the same time to simplify the construction of said spring means and its association with the button, whereby to provide for a more economical manufacture of the button.

In the drawings:

Figure 1 is a central transverse sectional view through a press button constructed in accordance with my invention as indicated by the line 11 of Fig. 2.

Fig. 2 is a view of the button, partly in plan, and partly in longitudinal section as indicated by the line 22 of Fig. 1.

Referring now more particularly to the accompanying drawings, 5 designates the female plate or circular body portion of the button, which includes a laterally andinwardly turned peripheral edge portion or head 6 forming an annular spring seating chamber, and a centrally formed hollow spherical dome 7 provided with diametrically opposed spring receiving slots 8 in its portion adjacent the plate 5 which is contracted to form a neck. The male plate 9 of the button is of conventional formation and carries a stud 10 including a ball shaped head engageable in the dome.

The usual spring means for holding the stud in the dome comprises a single spring member havin its end portions engaged in the slots 8. y invention contemplates the provision of a pair of spring wire members 11 each bent in the form of an ellipse; the

outer major arc of which is interrupted whereby to permit the same to expand and contract. Said major arc portions of these spring membersare inserted in diametrically opposed portions of the head 6, with their inner major arcs engaged in the slots 8. The outer major arcs of said springs when seated in the beads conform to the curvature of the female body member, and as a result of the resiliency of these parts it is unnecessary to hold the spring in position by crimping the bead therearound as is usually customary. Thus a spring tension is afforded both sides of the spring portions engageable in the slots, whereby a more posi tive resilient action is secured in contradistinction. to the aforementioned type of spring means including a single member having its end portion engaged in the slots, and also an obvious economy of material and labor incidental to forming an assembling of the spring members is procured.

What is claimed is:

A female member for press buttons comprising a stamped circular body portion having a central, hollow, spherical dome, the base of which is contracted to form a neck provided with spring receiving and retaining slots, a laterally turned spring retaining bead being formed at the peripheral edge of said body portion, and a pair of opposite elliptical springs carried by the body portion, the outer major arcs of which are inter rupted to permit the same to expand and contract and are loosely seated within said bead, said arcs when seated being of the same curvature as the circular body portion, the inner major arcs of said springs being confined within the dome slots.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

MILTON F. ALEXANDER.

0091:: 01 this patent may be obtained tor five cents each, by addressing the Commissioner 01 Fatents,

Wham P- 9- 

